KN

Katsukiyo Nagai

Ricoh Company: 6 patents #3,275 of 9,818Top 35%
Overall (All Time): #882,803 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6194535 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Akira Katayama, Masaomi Sasaki, Chiaki Tanaka, Shinichi Kawamura, Tetsuro Suzuki +2 more 2001-02-27
6172176 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Chiaki Tanaka, Masaomi Sasaki, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka 2001-01-09
6130310 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Akira Katayama, Masaomi Sasaki, Chiaki Tanaka, Shinichi Kawamura, Susumu Suzuka +1 more 2000-10-10
6066428 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Akira Katayama, Masaomi Sasaki, Chiaki Tanaka, Shinichi Kawamura, Tetsuro Suzuki +2 more 2000-05-23
6045959 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Akira Katayama, Masaomi Sasaki, Chiaki Tanaka, Shinichi Kawamura, Susumu Suzuka +1 more 2000-04-04
5976746 Electrophotographic photoconductor and aromatic polycarbonate resin for use therein Chiaki Tanaka, Masaomi Sasaki, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka 1999-11-02